Ball-bearing for axles



(No Model.)

S. ELLIOTT.

BALL BEARING FOR AXLES. No. 483,836. Patented Oct. 4, 1892.

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UNITED STATES PATENT OFFICE.

STERLING ELLIOTT, OF NEWTON, MASSACHUSETTS.

BALL-BEAR! NG FOR AXLES.

SPECIFICATION forming part of Letters Patent No. 483,836, dated October4, 1892.

Application filed October 19, 1891. Serial No. 409,089. (No model.)

To all whom it may concerm Be it known that I, STERLING ELLIOTT, ofNewton, county of Middlesex, State of Massa chusetts, have invented anImprovement in Ball-Bearings for Axles, of which the followingdescription, in connection with the accorn panying drawings, is aspecification, like let ters and figures on the drawing representinglike parts.

This invention has for its object to improve the construction ofball-bearings for velocipedes and the like; and it consists in detailsof construction to be hereinafter pointed out in the claims at the endof this specification.

The drawing shows in horizontal section the hub of a wheel provided withball-bearings embodying this invention.

The hub a of the Wheel and spokes Z1 may be of any well-known orsuitable construction. A circular end piece 0, made as a ferrule, isdriven onto the end of the hub a, it having as a part of it or affixedto it sprocketteeth 0 to form a sprocket-wheel. The said ferrule-likeend piece is also provided with an internally-screw-threaded flange 0which receives an externally-screw-threaded recessed shell or disk 0 Theend of the ferrule-like end piece 0 has a central opening for a tube e,which passes through the hub a, and the axle (Z is contained within saidtube 2. The ferrule-like end piece is fitted snugly onto the tube e. Theend piece is provided with an annular rib or projection 8, surroundingthe opening for the tube e. The disk or shell 0 is recessed to presentthree annular ribs or projections 2 3 4, as shown, and has a centralopening which receives a bushing 5, which is screwed onto the axle d.The inner end of the bushing 5 projects into the recess in the shell ordisk, and said projecting end is beveled, as at 7. A series of balls 6is placed in the recess in the shell or disk, bearing against or uponthe ribs orprojections23 and also upon the beveled end '7 of thehearing. The halls hence have three bearing points 2 3 '7, and betweenthese points open spaces are left. The shell 0", with its ribs 2 3,constitutes a ball-track. The bushing 5 is movable around andlongitudinally on the axle d, and is hence adjustable. The collar f isplaced on the axle (1 against the bushing 5, which fur nishes a supportfor a brace rodf, and a portion of a fork f 2 is placed on the axle (1against the collar f, then a washer f and lastlya nut f is screwed ontothe axle d to hold the parts in place. By removing the nut f washer ffork f and collar f, and also the bushing 5, the balls 6 will fall andbe supported on the bearing-points 4 and 8, so that many of the parts,as well as the axis, may be removed, if desired, without removing theballs. By providing three bearing-points for the balls, leaving openspaces between them, the friction and consequent wear upon the ballswill be reduced to the minimum. At the opposite end of the hub to aferrule-like end piece, made substantially the same as that abovedescribed and provided with similar bearings for the ball, is provided,although it does not have formed on it sprocket-teeth. With thisexception it is or may be the same. The screwthreads by which the shellsc or ball-tracks are held in the respective ends of the hub are maderight-handed on the left hand side of the wheel, and left-handed on theright side of the wheel so that the running of the wheel upon its axlewould tend to tighten the shells in place.

I clain1- 1. The hub of a wheel and the ferrule-like end piece havingsprocket-teeth c,atube upon which it is fitted which passes axiallythrough the hub, the annular rib 8, and the annular screw-threadedflange 0 combined with a re cessed shell cihaving annular ribs orprojections 2 3 4 in the recessed portion thereof, and the bushing 5,having a beveled end 7, which enters the recessed portion of the shell 0and furnishes a bearing-point, and a series of balls contained in saidrecessed shell 0 and normally bearing upon the points 2 3 7, butpermitted to fall and be supported by the points 4 8, substantially asdescribed.

2. The hub (1, having on it the ferrule-like end piece provided with aflange c and the annular rib 8, combined with a recessed shell 0 havingwithin its recessed portion three annular ribs 2 3 4, a bushing 5,adapted to be supported on the axle, its end portion being beveled, asat 7, and entering the recessed portion of the shell, and a series ofballs contained in said shell, substantially as described.

3. The hub at, having on it the ferrule-like end piece provided with aflange, as c ,co1nbined with a recessed shell, as c having annnlar ribs2 3 in its recessed portion, and a bushing 5, arranged on the aXle andentering said recessed portion of the shell to furnish an additionalbearing for a series of balls contained in said recessed portion,substantially as described.

4:. A hub having on it at each end ferrulelike end pieces, With flangesinternally screw- 10 threaded to receive ball-tracks, as described,

.the said screw-threads on one flange being out in an oppositedirection'to those on the otherflange substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of I 5 two subscribing witnesses.

STERLING ELLIOTT. Witnesses:

BERNIOE J. N OYES, FRANCES M. NOBLE.

